send21.io
LiveMCP Serversend21: Crypto pay links and API for people and AI agents. BTC, Lightning, USDC, USDT, EURC, SOL, ETH. (text from the Official MCP Registry)
LiveLast Connection Check
203 msTypical Response Time
14Tools Offered
2025-06-18Protocol Version
8 h agoLast Checked (2026-10-24T13:27:47Z)
NoLogin Required
Servers On This Host
| Address | Name | Status | Recent Checks OK | Response Time | Tools | Last Checked |
|---|---|---|---|---|---|---|
| https://send21.io/mcp | send21 | Live | – | 203 ms | 14 | 8 h ago · receipt |
| https://send21.io/mcp/oauth | send21 | Live, Needs Login | – | 75 ms | n/a | 10 h ago · receipt |
How we check: we connect without logging in and ask for the list of tools. We never send credentials and never pay. Tools that don't state a price are never called; for tools that do, we send at most 2 unpaid calls to read the payment request. We make test purchases only from HTTP x402 services, never from MCP tools. Signed records: raw data page · free quick check (JSON)